Chin. Phys. B ›› 2012, Vol. 21 ›› Issue (12): 127804-127804.doi: 10.1088/1674-1056/21/12/127804

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Ca2BO3Cl:Ce3+, Tb3+: A novel tunable emitting phosphor for white light-emitting diode

李盼来a b c, 王永生a b, 赵谡玲a b, 张福俊a b, 徐征a b   

  1. a Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China;
    b Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China;
    c College of Physics Science & Technology, Hebei University, Baoding 071002, China
  • 收稿日期:2012-04-17 修回日期:2012-05-08 出版日期:2012-11-01 发布日期:2012-11-01
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB327704), the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 60825407), the New Century Excellent Talents in University (Grant No. NCET-10-0220), the National Natural Science Foundation of China (Grant Nos. 10974013, 60978060, 10804006, and 50902042)

Ca2BO3Cl:Ce3+, Tb3+: A novel tunable emitting phosphor for white light-emitting diode

Li Pan-Lai (李盼来)a b c, Wang Yong-Sheng (王永生)a b, Zhao Su-Ling (赵谡玲)a b, Zhang Fu-Jun (张福俊)a b, Xu Zheng (徐征)a b   

  1. a Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China;
    b Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China;
    c College of Physics Science & Technology, Hebei University, Baoding 071002, China
  • Received:2012-04-17 Revised:2012-05-08 Online:2012-11-01 Published:2012-11-01
  • Contact: Wang Yong-Sheng, Xu Zheng E-mail:yshwang@bjtu.edu.cn;zhengxu@bjtu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB327704), the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 60825407), the New Century Excellent Talents in University (Grant No. NCET-10-0220), the National Natural Science Foundation of China (Grant Nos. 10974013, 60978060, 10804006, and 50902042)

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摘要： Ca2BO3Cl:Ce3+, Ca2BO3Cl:Tb3+, and Ca2BO3Cl:Ce3+, Tb3+ phosphors are synthesized by a high temperature solid-state reaction. The emission intensity of Ce3+ or Tb3+ in Ca2BO3Cl is influenced by the Ce3+ or Tb3+ doping content, and the optimum concentrations of Ce3+ and Tb3+ are 0.03 mol and 0.05 mol, respectively. The concentration quenching effect of Ce3+ or Tb3+ in Ca2BO3Cl occurs, and the concentration quenching mechanism is d-d interaction for either Ce3+ or Tb3+. The Ca2BO3Cl:Ce3+, Tb3+ can produce colour emission from blue to green by properly tuning the relative ratio between Ce3+ and Tb3+, and the emission intensity of Tb3+ in Ca2BO3Cl can be enhanced by the energy transfer from Ce3+ to Tb3+. The results indicate that Ca2BO3Cl:Ce3+, Tb3+ may be a promising double emission phosphor for UV-based white light emitting diode.

关键词: luminescence, phosphor, Ca2BO3Cl：Ce3+, Tb3+, energy transfer

Abstract: Ca2BO3Cl:Ce3+, Ca2BO3Cl:Tb3+, and Ca2BO3Cl:Ce3+, Tb3+ phosphors are synthesized by a high temperature solid-state reaction. The emission intensity of Ce3+ or Tb3+ in Ca2BO3Cl is influenced by the Ce3+ or Tb3+ doping content, and the optimum concentrations of Ce3+ and Tb3+ are 0.03 mol and 0.05 mol, respectively. The concentration quenching effect of Ce3+ or Tb3+ in Ca2BO3Cl occurs, and the concentration quenching mechanism is d-d interaction for either Ce3+ or Tb3+. The Ca2BO3Cl:Ce3+, Tb3+ can produce colour emission from blue to green by properly tuning the relative ratio between Ce3+ and Tb3+, and the emission intensity of Tb3+ in Ca2BO3Cl can be enhanced by the energy transfer from Ce3+ to Tb3+. The results indicate that Ca2BO3Cl:Ce3+, Tb3+ may be a promising double emission phosphor for UV-based white light emitting diode.

Key words: luminescence, phosphor, Ca2BO3Cl：Ce3+, Tb3+, energy transfer

中图分类号:  (Photoluminescence, properties and materials)

  • 78.55.-m
33.50.Dq (Fluorescence and phosphorescence spectra) 33.20.Kf (Visible spectra)